Doesn't support schemas with dashes/spaces in property names

[romancow]

I'm getting a "Lexical error" when attempting to validate a schema with a property that has something like a space or dash in its name.

Here is a simple example schema, that will cause the error:
{"title":"Validation Test","type":"object","properties":{"Some-Prop": { "type": "string" }}}

import validator from "@json-schema-tools/validator"

const schema = {"title":"Validation Test","type":"object","properties":{"Some-Prop": { "type": "string" }}}

const validity = validator(schema,{})

wills result in this error:

Error: Lexical error on line 1. Unrecognized text.
$.Some-Prop
------^